QDateTime::toString(const QString & format) formats without separators

In http://doc.qt.io/qt-5/qdatetime.html#toString
the documentation states "Formats without separators (e.g. "HHmm") are currently not supported."

However formats without separators seem to be working fine.

    QDateTime dateTime = QDateTime::currentDateTime();
    qDebug()<<dateTime.toString("hhmm");